Abstract
As an application of Stirling Engine heated by waste heat recovering or biomass combustion flame with its working fluid composed by incondensable (He, N2, H2, etc.), gas and condensable fluid (H_2O, etc.), the relation between heat recovery ratio and partial pressure of the condensable fluid are investigated. In addition, combination effects with multi-stage heater along with heat source flow, working fluid circulating flow system by lead valves, are studied. Through a simple modeling of 2-stage, circulating flow Stirling Engine with 10% partial pressure of H_2O vapor, the heat recovery ratio on the heater part increases approx. 2.4 times, compare with single stage normal Stirling Engine.
